https://issues.dlang.org/show_bug.cgi?id=16489
Issue ID: 16489
Summary: [backend][optimizaton][registers] DMD is 10-20 times
slower for GLAS
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
Small static arrays should be allocated in registers if possible [2]. Currently
DMD loads and stores values of static array each time.
Currently DMD is 10-20(!) times slower for GLAS matrix multiplication then LDC.
This is the largest DMD BE problem for GLAS [1].
[1] http://docs.mir.dlang.io/latest/mir_glas_l3.html
[2]
https://github.com/libmir/mir/blob/v0.17.0-alpha0/source/mir/glas/internal/gemm.d#L360
Related Issue: https://issues.dlang.org/show_bug.cgi?id=16488
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